Issue 24599. Fix for requesting navigation for directives.

pkg/analysis_server/test/analysis/get_navigation_test.dart

Index: pkg/analysis_server/test/analysis/get_navigation_test.dart
diff --git a/pkg/analysis_server/test/analysis/get_navigation_test.dart b/pkg/analysis_server/test/analysis/get_navigation_test.dart
index 34a8010863849a954dcd45255254e5f0c7bd1cea..fb4916975501913f5919b8b1cf7692cc5773c0f1 100644
--- a/pkg/analysis_server/test/analysis/get_navigation_test.dart
+++ b/pkg/analysis_server/test/analysis/get_navigation_test.dart
@@ -58,6 +58,48 @@ main() {
     return _checkInvalid(file, -1, -1);
   }
 
+  test_issue24599_importDirective() async {
+    addTestFile('''
+import 'dart:math';
+
+main() {
+}''');
+    await waitForTasksFinished();
+    await _getNavigation(testFile, 0, 17);
+    expect(regions, hasLength(1));
+    assertHasRegionString("'dart:math'");
+    expect(testTargets, hasLength(1));
+    expect(testTargets[0].kind, ElementKind.LIBRARY);
+  }
+
+  test_issue24599_importKeyword() async {
+    addTestFile('''
+import 'dart:math';
+
+main() {
+}''');
+    await waitForTasksFinished();
+    await _getNavigation(testFile, 0, 1);
+    expect(regions, hasLength(1));
+    assertHasRegionString("'dart:math'");
+    expect(testTargets, hasLength(1));
+    expect(testTargets[0].kind, ElementKind.LIBRARY);
+  }
+
+  test_issue24599_importUri() async {
+    addTestFile('''
+import 'dart:math';
+
+main() {
+}''');
+    await waitForTasksFinished();
+    await _getNavigation(testFile, 7, 11);
+    expect(regions, hasLength(1));
+    assertHasRegionString("'dart:math'");
+    expect(testTargets, hasLength(1));
+    expect(testTargets[0].kind, ElementKind.LIBRARY);
+  }
+
   test_multipleRegions() async {
     addTestFile('''
 main() {